You can cut or machine a drilled and slotted rotor. Just set your brake lathe to its slowest setting to avoid any chatter.
Whenever replacing your pads, you’ll want to replace or cut your rotors, so the new pads can bed-in properly.
However, if you want that non-directional cross-cut finish go with a new set of rotors from PowerStop. It’s likely to cost close to the same, and even possibly less than cutting a rotor.
